f2fs: compress: fix to avoid memory leak on cc->cpages

Memory allocated for storing compressed pages' poitner should be released after f2fs_write_compressed_pages(), otherwise it will cause memory leak issue. Signed-off-by: Chao Yu <[email protected]> Fixes: 4c8ff70 ("f2fs: support data compression") Signed-off-by: Jaegeuk Kim <[email protected]>
andreock · Jul 27, 2020 · 7a9e6ac · 7a9e6ac
1 parent ca71e2b
commit 7a9e6ac
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
@@ -1356,6 +1356,8 @@ int f2fs_write_multi_pages(struct compress_ctx *cc,
 		err = f2fs_write_compressed_pages(cc, submitted,
 							wbc, io_type);
 		cops->destroy_compress_ctx(cc);
+		kfree(cc->cpages);
+		cc->cpages = NULL;
 		if (!err)
 			return 0;
 		f2fs_bug_on(F2FS_I_SB(cc->inode), err != -EAGAIN);